JPH074627B2 - Container deformation correction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention is used for sintering or firing a ceramic molded article or the like in a high-temperature furnace, and a deformed container has an original shape. To a container deformation correcting device for returning to the container.

(Prior Art) Generally, a metal container made of molybdenum or the like is used for sintering or firing a ceramic molded product or the like in a high temperature furnace.

Since these metal containers are used in a high temperature furnace with a temperature of about 1200 ° C or higher, large and small thermal deformations occur in the used metal containers.

If this deformation is large, it is difficult to correct the deformation and it is discarded, and if it is small, it is corrected by hot working and reused.

When deforming a metal container made of molybdenum by hot working, the deformation can be done by tapping or pressing the deformed surface of the container while heating it above the recrystallization temperature of molybdenum of about 905 ° C. Done.

(Problems to be solved by the invention) However, in the above-described deformation correction, the heating temperature is high, so the temperature is lowered during the correction, and it is necessary to repeat heating again and again, and the surface of the container is directed to one side. There is a problem that the correction work is complicated and the correction work is complicated.

Further, when the surface of the container is corrected to one surface, a force acts on the other surface during the correction to cause an extra deformation, and the correction work must be repeated many times.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art and to provide a container deformation correction device capable of correcting the deformation of the container within a short time.

[Structure of Invention]

(Means for Solving Problems) In order to achieve the above object, the present invention provides an upper ram,
The inner guide member is provided so as to extend downward from the central portion of the lower surface of the upper ram, and the lower outer surface is formed with a plurality of inclined surfaces that converge downward. The inner guide member is engaged with each of the inclined surfaces of the inner guide member. And an inner mold which is formed on the inner surface so as to slidably contact each of the slanted surfaces, and is movable in the up-down direction along the slanted surface of the inner guide member,
A plurality of inclined surfaces corresponding to the inclined surface of the inner guide member from the lower surface of the upper ram, vertically extending downward at a predetermined distance from the inclined surface, and having an inclined surface that expands outwardly downward on the inner surface. The outer guide member and the slanted surface of the outer guide member are respectively engaged with the slanted surface so as to be in sliding contact with the slanted surface. The slanted surface is formed on the outer surface, and the slanted surface of the outer guide member is vertically movable. An outer mold and a lower ram on which the container to be modified can be placed with its opening facing upwards,
It is characterized in that at least one of the upper ram and the lower ram can be moved toward or away from the other.

(Operation) The modified container is placed on the upper surface of the lower ram, and at least one of the lower ram and the upper ram is moved closer to the other.

As the rams approach each other, the side wall of the modified container is inserted into the gap between the side surfaces of the outer mold and the inner mold. Then, when both rams approach each other by a predetermined value or more, the outer mold and the inner mold are lifted by the lower ram, and respectively move upward along the inclined surfaces of the guide members, so that the outer mold is inward and the inner mold is outward. Move and both molds approach each other.

When the two dies approach each other in this way, the side faces of the two dies approaching each other come into contact with the side wall of the container to be corrected and press and pinch, while at the same time, the lower end face of the inner die cooperates with the upper face of the lower ram. It works and presses the bottom surface of the modified container.

Therefore, the plurality of deformed surfaces of the container to be corrected are simultaneously corrected at once.

(Embodiment) An embodiment of the container deformation correcting device according to the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 1, reference numeral 1 indicates a fixed upper ram.

A bracket 2 is provided on the lower end surface of the upper ram 1 approximately at the center thereof.
The inner guide member 3 is vertically provided via the.

Four inclined surfaces are provided on the outer surface of the lower portion of the inner guide member 3.
4a, 4b, 4c and 4d are formed so as to converge downward.

Around the lower part of the inner guide member 3, the inclined surface 4
Four wedge-shaped inner molds 5a, 5b, corresponding to a, 4b, 4c, 4d
5c and 5d are arranged. A part of the inner surface of the inner mold 5a, 5b, 5c, 5d has an inclined surface 6a, 6b, 6c, 6 facing upward and outward.
d is formed, and the inclined surfaces 6a, 6b, 6c, 6d are slidably engaged with the inclined surfaces 4a, 4b, 4c, 4d of the inner guide member 3, respectively.

Also, the outer surfaces of the inner molds 5a, 5b, 5c, 5d have vertical surfaces 7a, 7b, 7c,
7d is formed and horizontal planes 8a, 8b, 8c, 8d are formed on the lower end surface.
Are formed.

On the other hand, on the inclined surfaces 4a, 4b, 4c, 4d of the inner guide member 3, for example, trapezoidal stoppers 9a, 9 having a large cross-section with a distal end portion are formed.
b, 9c, 9d are projected, and the inclined surfaces 6a, 6b, 6c, 6d of the inner mold
Wide trapezoidal grooves 10a, 10b, 10c,
The inner molds 5a, 5b, 5c, 5d are fitted to the respective 10d so that the inner molds 5a, 5b, 5c, 5d can slide along the inclined surfaces 4a, 4b, 4c, 4d and do not fall downward.

Further, the lower surface of the upper ram 1 is provided at a position facing each inclined surface of the inner guide member 3 with a predetermined space therebetween.
The individual outer guide members 11a, 11b, 11c, 11d are vertically provided.

Four inclined surfaces 12a, 12b, 12c, 12d are formed on the inner surface of the lower portion of the outer guide members 11a, 11b, 11c, 11d so as to expand downward and outward.

Inside the lower part of the outer guide members 11a, 11b, 11c, 11d, four wedge-shaped outer molds 13a, 13b, 13c, 13d corresponding to the inclined surfaces 12a, 12b, 12c, 12d are arranged. The outer molds 13a, 13b, 13c, 13d are formed with inclined surfaces 14a, 14b, 14c, 14d facing upward inward on a part of the outer surfaces thereof, and the inclined surfaces 14a, 14b, 14c and 14d are slidably engaged with the inclined surfaces 12a, 12b, 12c and 12d of the outer guide member, respectively.

In addition, vertical surfaces 15a, 1 are attached to the inner surfaces of the outer molds 13a, 13b, 13c, 13d.
5b, 15c, and 15d are formed, and at the lower end surface, a horizontal plane 16a,
16b, 16c, 16d are formed.

On the other hand, the inclined surface 12a, 12b, 12c, 12d of the outer guide member, for example, a trapezoidal stopper 17a with a large cross-section tip end,
17b, 17c, 17d are projected, and the inclined surfaces 14a, 14 of the outer mold.
A trapezoidal groove 18 with a wide groove bottom carved along b, 14c, 14d
a, 18b, 18c, 18d are fitted respectively, and the outer mold 13a, 13b, 13
The c and 13d are slidable along the inclined surfaces 12a, 12b, 12c and 12d and are prevented from falling down.

A movable lower ram 19 is provided below the upper ram 1.
Are arranged in parallel, and can be moved toward and away from the upper ram 1 side by a guide rail and a drive device (not shown).

Also, on the upper surface of the lower ram 19, a box-shaped container whose deformation is corrected
Twenty can be loaded.

As shown in FIG. 3, the box-shaped container 20 is composed of a right side surface 20a, a left side surface 20b, a rear side surface 20c, a front side surface 20d and a bottom surface 20e. Board 21a,
21b, 21c, 21d, and 21e are respectively arranged and used as a heat insulating material together with deformation correction.

On the other hand, the lower surface of the upper ram 1 has inner molds 5a, 5b, 5c, 5d.
Stoppers 22a, 22b, 22c, 22d at a position facing the upper end surface of
Is arranged so that movement of the inner molds 5a, 5b, 5c, 5d above a predetermined height can be restricted.

The operation of the container deformation correcting device configured as described above will be described with reference to FIGS. 1 to 3.

FIG. 1 shows a state in which the box-shaped container 20 is heated in a heating furnace to a temperature above the recrystallization temperature of about 905 ° C. and then placed on the upper surface of the lower ram 19 which is separated from the upper ram 1. After mounting the box-shaped container 20 on the lower ram 19 in this way, the lower ram 19 is moved upward and brought closer to the upper ram 1, and the side walls 20a, 20b, 20c, 20d of the box-shaped container 20 are Are inserted into the gaps between the corresponding inner molds 5a, 5b, 5c, 5d and outer molds 13a, 13b, 13c, 13d.

Next, the lower end surface 16a, 16b, 16c, 16d of the outer mold is the lower ram 1.
The outer dies 13a, 13b, 13c, 13d are lifted when they come into contact with the upper surface of 9.

At this time, the inclined surfaces 14a, 14b, 14c, 14d of the outer mold rise while sliding on the inclined surfaces 12a, 12b, 12c, 12d of the outer guide member, and the inner surfaces 15a, 15b, 15c of the outer mold, 15d moves parallel to the perpendicular, moves up and moves inward.

When the lower ram 19 further moves upward, the lower end surface of the inner mold is
The inner molds 5a, 5b, 5c, 5d are lifted by contacting the backing plate 21e provided on the bottom surface 20e of the box-shaped container 20 with 8a, 8b, 8c, 8d.

At this time, the inclined surfaces 6a, 6b, 6c, 6d of the inner die rise while sliding on the inclined surfaces 4a, 4b, 4c, 4d of the inner guide member, and the outer surfaces 7a, 7b, 7c, 7d of the inner die. Moves parallel to the perpendicular and moves upward as it rises.

Thus, as shown in FIG. 2, the side surfaces 20a, 20b, 20c, 20d of the box-shaped container 20 finally become the inner side surfaces 15a, 1 of the outer mold.
5b, 15c, 15d and the outer surfaces 7a, 7b, 7c, 7d of the inner mold are pressed and sandwiched, and the deformation of the side surface of the box-shaped container 20 is corrected.

Almost at the same time, the bottom surface 20e of the box-shaped container 20 is pressed and pinched by the lower end surfaces 8a, 8b, 8c, 8d of the inner mold and the upper surface of the lower ram 19, and the deformation of the bottom surface of the box-shaped container 20 is corrected.

The sandwiched state at this time is shown in FIG. 3 which is a cross section taken along the line AA in FIG.

In this way, it is possible to modify the deformation of the five sides of the box-shaped container, four sides and one bottom, all at once at the same time and within a short period of time. Even non-persons can easily make corrections.

Another embodiment according to the present invention will be described.

In the above-described embodiment, the modified side wall of the container to be modified is 4
Although the surface type is described, the two inner side walls and the outer side mold may simultaneously deform and correct two opposing side walls.

This device is effective mainly in the case where the specified two faces are deformed in the rectangular box-shaped container, and instead of the above-mentioned device for simultaneously correcting the four faces, the two opposite faces are addressed.
The deformation correcting device can be miniaturized by making it a device that corrects in a divided manner.

Another embodiment according to the present invention will be described with reference to FIG.

FIG. 4 shows a deformation correcting device for the cylindrical container 25, and shows a sandwiching state similar to FIG. The same parts as those in FIGS. 1 to 3 are designated by the same reference numerals. The inner surface of the inner guide member 3 is slidably engaged in the vertical direction, and the outer surface of the inner guide member 3 is formed in an arc shape whose horizontal cross section is centered inward.
Individual inner molds 23a, 23b, 23c, 23d are arranged.

Also, four outer metal members which are slidably engaged in the inside of the outer guide members 11a, 11b, 11c, 11d and whose inner side surfaces are formed in an arc shape whose horizontal cross section is centered inward are formed. The molds 24a, 24b, 24c, 24d are arranged.

Furthermore, the inner surface of the cylindrical container 25 and the inner mold 23a, 23b, 23c,
Between the outer surface of the 23d and a fan-shaped backing plate 26a, 26b, 26c, 26d having a horizontal cross section centered on the inner side, the pressing plates are secured.

Even in the case of such a cylindrical container having a different shape, the side walls thereof have the arc-shaped inner molds 23a, 23b, 23c, 23d and the outer mold 24.
By pressing and sandwiching with a, 24b, 24c, 24d, the deformation can be corrected as in the case of the box-shaped container.

〔The invention's effect〕

As is clear from the above description, according to the present invention, the movable outer mold and the inner mold corresponding to the side wall shape of the container to be corrected are connected to the upper ram through the guide member and the lower ram is covered. The correction container is placed, at least one of the upper ram and the lower ram is brought closer to the other, the side wall of the container to be corrected is sandwiched between the outer mold and the inner mold, and the lower end surface of the inner mold is By clamping the bottom surface with the upper surface of the lower ram, and simultaneously pressing and clamping multiple surfaces at the same time, it is possible to correct the deformation, and it is possible to correct the deformation within a short time, eliminating the need for reheating and repeated work. Even if you are not an expert, you can easily modify it.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of the container deformation correcting device according to the present invention, FIG. 2 is an explanatory view showing the operation of the deformation correcting device according to the present invention, and FIG. 3 is an A in FIG. FIG. 4 is a cross-sectional view taken along the line A of FIG. 4, showing the positional relationship of the apparatus, and FIG. 4 is a plan cross-sectional view showing another embodiment of the present invention. 1 ... Upper ram, 3 ... Inner guide member, 4a, 4b, 4c, 4d ... Inclined surface of inner guide member, 5a, 5b, 5c, 5d ... Inner mold, 6a, 6
b, 6c, 6d ... Inclined surface of inner die, 11a, 11b, 11c, 11d ... Outer guide member, 12a, 12b, 12c, 12d ... Inclined surface of outer guide member, 13a, 13b, 13c, 13d ... Outer die Molds, 14a, 14b, 14c, 14d ... Inclined surface of outer mold, 19 ... Lower ram, 20 ... Container to be modified.

Claims (5)

[Claims] 1. An upper ram, an inner guide member vertically extending downward from a central portion of a lower surface of the upper ram, and a plurality of inclined surfaces converging downward on an outer surface of the lower ram; An inner mold that is engaged with each inclined surface of the guide member, has an inclined surface that is in sliding contact with each inclined surface on the inner surface, and is movable in the up-down direction along the inclined surface of the inner guide member, A plurality of inclined surfaces corresponding to the inclined surface of the inner guide member from the lower surface of the upper ram, vertically extending downward at a predetermined distance from the inclined surface, and having an inclined surface that expands outwardly downward on the inner surface. The outer guide member and the inclined surface of the outer guide member are respectively engaged,
An inclined surface that is in sliding contact with the inclined surface is formed on the outer surface, and the outer mold that is vertically movable along the inclined surface of the outer guide member and the container to be modified can be placed with the opening facing upward. A container deformation correcting device, comprising: a lower ram, wherein at least one of the upper ram and the lower ram can approach or separate from the other. 2. The container deformation correcting device according to claim 1, wherein each of the outer guide member, the inner mold, and the outer mold is provided with four pieces. 3. The container deformation correcting device according to claim 1, wherein the outer guide member, the inner mold, and the outer mold are provided at two facing positions, respectively. 4. The container is a box type, and vertical surfaces are formed on the outer side surface of the inner mold and the inner side surface of the outer mold, and the bottom surfaces of the inner mold and the outer mold are formed. The container deformation correcting device according to claim 1, wherein a horizontal surface is formed. 5. The container has a cylindrical shape, and the outer surface of the inner die and the inner surface of the outer die are formed in an arc shape whose horizontal cross section has an inner center. The deformation correcting device for a container according to claim 1, wherein a horizontal surface is formed on a lower end surface of the outer mold.